diff options
| author | Timothy Pearson <tpearson@raptorengineeringinc.com> | 2015-12-07 12:22:23 -0600 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2015-12-08 22:08:54 +0100 |
| commit | 72c83a8e231cd4fbc5b9fcec53e4b7b26ce4f144 (patch) | |
| tree | d4edababa360cd66749af9f52ed24c1c5ab931f0 /src/southbridge/amd/sr5650/pcie.c | |
| parent | c7c30a8400c33060115842554c28e2dc0852f7d7 (diff) | |
sb/amd/sr5650: Allow resource allocator to assign bus numbers
At some point in the past disconnected PCIe bridges were completely
disabled to work around a hang on bridge probe. This hang was
resolved at some point, and the disconnected PCIe bridges should
be enabled to receive a bus number per the RPR.
This resolves a slew of warnings in the Linux boot log regarding
invalid bridge configurations for disconnected bridge devices.
Change-Id: Ic26e2d62ec5ddb9f22275c2afec7d560326263c7
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: https://review.coreboot.org/12673
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'src/southbridge/amd/sr5650/pcie.c')
| -rw-r--r-- | src/southbridge/amd/sr5650/pcie.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/southbridge/amd/sr5650/pcie.c b/src/southbridge/amd/sr5650/pcie.c index 762e632c2a..e198b87324 100644 --- a/src/southbridge/amd/sr5650/pcie.c +++ b/src/southbridge/amd/sr5650/pcie.c @@ -768,11 +768,12 @@ void sr5650_gpp_sb_init(device_t nb_dev, device_t dev, u32 port) if (res) { AtiPcieCfg.PortDetect |= 1 << port; } else { - /* If the training failed the disable the bridge to prevent subsequent - * lockup on bridge configuration register read during the PCI bus scan + /* Even though nothing is attached to this port + * the port needs to be "enabled" to obtain + * a bus number from the PCI resource allocator */ training_ok = 0; - dev->enabled = 0; + dev->enabled = 1; } } } |